:root {
  --ink: #142033;
  --muted: #617086;
  --navy: #102b4f;
  --navy-2: #163866;
  --blue: #1e5bb8;
  --blue-2: #eaf2fb;
  --gold: #c7a75a;
  --gold-2: #fff5dc;
  --green: #1b806b;
  --red: #a33a3a;
  --line: #d9e2ef;
  --surface: #f6f9fd;
  --white: #ffffff;
  --shadow: 0 18px 45px rgba(15, 36, 68, .12);
  --radius: 8px;
  --max: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "PingFang SC", "Noto Sans CJK SC", "Microsoft YaHei", sans-serif;
  color: var(--ink);
  background: var(--white);
  line-height: 1.6;
  letter-spacing: 0;
}

body.menu-open {
  overflow: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

img,
svg {
  max-width: 100%;
  display: block;
}

button,
input,
select,
textarea {
  font: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, .94);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(217, 226, 239, .9);
}

.nav-shell {
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 250px;
}

.brand-mark {
  width: 38px;
  height: 38px;
  border-radius: 7px;
  display: block;
  overflow: hidden;
  box-shadow: 0 10px 22px rgba(30, 91, 184, .22);
  flex: 0 0 auto;
}

.brand-mark svg {
  width: 100%;
  height: 100%;
  display: block;
}

.brand-text strong {
  display: block;
  font-size: 19px;
  line-height: 1.18;
  letter-spacing: 0;
}

.brand-text span {
  display: block;
  color: var(--muted);
  font-size: 12px;
  margin-top: 3px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 6px;
}

.site-nav a {
  color: #273b58;
  font-size: 14px;
  font-weight: 700;
  padding: 10px 12px;
  border-radius: 6px;
}

.site-nav a:hover,
.site-nav a.is-active {
  background: var(--blue-2);
  color: var(--blue);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.hotline-link {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--navy);
  font-size: 13px;
  font-weight: 900;
  background: var(--white);
}

.hotline-link:hover {
  border-color: var(--gold);
  color: #765a12;
  background: var(--gold-2);
}

.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: var(--white);
  color: var(--navy);
}

.menu-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 4px auto;
  background: currentColor;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 18px;
  border-radius: 6px;
  border: 1px solid transparent;
  font-weight: 800;
  white-space: nowrap;
  cursor: pointer;
}

.btn-primary {
  background: var(--blue);
  color: var(--white);
  box-shadow: 0 12px 24px rgba(30, 91, 184, .2);
}

.btn-primary:hover {
  background: #174d9f;
}

.btn-secondary {
  background: var(--white);
  color: var(--navy);
  border-color: var(--line);
}

.btn-secondary:hover {
  border-color: var(--blue);
  color: var(--blue);
}

.btn-gold {
  background: var(--gold);
  color: #152033;
}

.page-hero,
.home-hero {
  position: relative;
  overflow: hidden;
  background:
    linear-gradient(120deg, rgba(16, 43, 79, .98), rgba(22, 56, 102, .95)),
    radial-gradient(circle at 82% 18%, rgba(199, 167, 90, .2), transparent 32%);
  color: var(--white);
}

.home-hero {
  min-height: 640px;
}

.home-hero::after,
.page-hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(199, 167, 90, .85), transparent);
}

.hero-shell,
.page-hero-shell,
.section-inner {
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
}

.hero-shell {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 500px;
  gap: 64px;
  align-items: center;
  padding: 78px 0 54px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--gold);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: .06em;
  text-transform: uppercase;
}

.eyebrow::before {
  content: "";
  width: 24px;
  height: 2px;
  background: currentColor;
}

h1,
h2,
h3,
h4,
p {
  overflow-wrap: anywhere;
}

h1,
.display-title {
  margin: 16px 0 18px;
  font-family: "Songti SC", "STSong", "Noto Serif CJK SC", serif;
  font-size: clamp(42px, 6vw, 76px);
  line-height: 1.04;
  letter-spacing: 0;
}

.hero-copy {
  color: rgba(255, 255, 255, .82);
  font-size: 18px;
  max-width: 650px;
  margin: 0 0 28px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 34px;
}

.proof-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: rgba(255, 255, 255, .18);
  border: 1px solid rgba(255, 255, 255, .2);
  border-radius: var(--radius);
  overflow: hidden;
  max-width: 680px;
}

.proof-item {
  background: rgba(255, 255, 255, .08);
  padding: 17px;
}

.proof-item strong {
  display: block;
  color: var(--white);
  font-size: 25px;
  line-height: 1.1;
}

.proof-item span {
  display: block;
  color: rgba(255, 255, 255, .72);
  font-size: 12px;
  margin-top: 6px;
}

.hero-visual {
  position: relative;
  min-height: 520px;
}

.phone-cluster {
  position: absolute;
  right: 30px;
  top: 10px;
  width: 310px;
  height: 500px;
}

.phone-device {
  position: absolute;
  width: 230px;
  min-height: 440px;
  padding: 16px;
  border-radius: 30px;
  background: #f9fbff;
  color: var(--ink);
  border: 8px solid #0c1726;
  box-shadow: 0 34px 65px rgba(4, 12, 25, .35);
}

.phone-device.back {
  left: -48px;
  top: 64px;
  transform: rotate(-8deg) scale(.88);
  opacity: .82;
}

.phone-device.front {
  right: 0;
  top: 0;
  transform: rotate(3deg);
}

.phone-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: #52637a;
  font-size: 11px;
  font-weight: 800;
  margin-bottom: 18px;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 4px rgba(27, 128, 107, .12);
}

.caller-card {
  border: 1px solid #dce5f2;
  border-radius: 8px;
  padding: 16px;
  background: var(--white);
  box-shadow: 0 12px 24px rgba(21, 43, 78, .08);
}

.caller-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 8px;
  border-radius: 5px;
  background: var(--gold-2);
  color: #765a12;
  font-size: 11px;
  font-weight: 900;
}

.caller-title {
  margin: 18px 0 5px;
  font-size: 20px;
  font-weight: 900;
}

.caller-subtitle {
  color: var(--muted);
  font-size: 12px;
}

.call-actions {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  margin-top: 18px;
}

.call-actions span {
  min-height: 40px;
  display: grid;
  place-items: center;
  border-radius: 7px;
  color: var(--white);
  font-weight: 900;
  font-size: 12px;
}

.call-actions span:first-child {
  background: var(--green);
}

.call-actions span:last-child {
  background: #34445a;
}

.diagnosis-panel {
  position: absolute;
  left: 0;
  bottom: 16px;
  width: 275px;
  background: rgba(255, 255, 255, .96);
  color: var(--ink);
  border: 1px solid rgba(217, 226, 239, .9);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: var(--shadow);
}

.diagnosis-panel h3 {
  margin: 0 0 12px;
  font-size: 16px;
}

.health-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 0;
  border-top: 1px solid #edf2f8;
  color: var(--muted);
  font-size: 13px;
}

.health-row strong {
  color: var(--green);
}

.signal-bars {
  display: flex;
  align-items: end;
  gap: 4px;
  height: 28px;
  margin-top: 10px;
}

.signal-bars span {
  width: 22%;
  border-radius: 4px 4px 0 0;
  background: linear-gradient(180deg, var(--blue), #7ba6de);
}

.signal-bars span:nth-child(1) {
  height: 34%;
}

.signal-bars span:nth-child(2) {
  height: 58%;
}

.signal-bars span:nth-child(3) {
  height: 80%;
}

.signal-bars span:nth-child(4) {
  height: 100%;
  background: linear-gradient(180deg, var(--gold), #e7d08e);
}

.section {
  padding: 88px 0;
}

.section-soft {
  background: var(--surface);
}

.section-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 32px;
  margin-bottom: 34px;
}

.section-kicker {
  color: var(--blue);
  font-size: 13px;
  font-weight: 900;
  margin-bottom: 8px;
}

.section-title {
  margin: 0;
  font-family: "Songti SC", "STSong", "Noto Serif CJK SC", serif;
  font-size: clamp(30px, 4vw, 48px);
  line-height: 1.12;
}

.section-summary {
  margin: 0;
  max-width: 510px;
  color: var(--muted);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: 0 12px 28px rgba(17, 42, 77, .06);
}

.card h3 {
  margin: 0 0 10px;
  font-size: 20px;
}

.card p {
  margin: 0;
  color: var(--muted);
}

.number-tag {
  display: inline-grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 7px;
  background: var(--blue-2);
  color: var(--blue);
  font-weight: 900;
  margin-bottom: 16px;
}

.pain-card {
  min-height: 225px;
}

.pain-card strong {
  display: block;
  color: var(--red);
  font-size: 13px;
  margin-bottom: 12px;
}

.value-card {
  border-top: 4px solid var(--gold);
}

.coverage-layout {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 28px;
  align-items: center;
}

.coverage-map {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  padding: 24px;
  box-shadow: var(--shadow);
}

.channel-row {
  display: grid;
  grid-template-columns: 92px 1fr;
  gap: 14px;
  align-items: center;
  padding: 14px 0;
  border-bottom: 1px solid #edf2f8;
}

.channel-row:nth-last-child(2) {
  border-bottom: 0;
}

.channel-name {
  font-weight: 900;
}

.bar-track {
  position: relative;
  height: 10px;
  border-radius: 999px;
  background: #e8eef7;
}

.bar-fill {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, var(--blue), var(--gold));
  border-radius: inherit;
}

.channel-percent {
  position: absolute;
  top: 50%;
  right: 10px;
  transform: translateY(-50%);
  padding: 2px 7px;
  border-radius: 999px;
  background: var(--white);
  color: var(--navy);
  font-size: 12px;
  font-weight: 900;
  line-height: 1.2;
  box-shadow: 0 4px 10px rgba(17, 42, 77, .08);
}

.channel-total {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 14px;
  padding: 14px 16px;
  border-radius: 8px;
  background: var(--navy);
  color: var(--white);
}

.channel-total span {
  font-weight: 900;
}

.channel-total strong {
  color: var(--gold);
  font-size: 24px;
}

.type-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.type-list span {
  padding: 8px 11px;
  border-radius: 999px;
  background: var(--blue-2);
  color: var(--navy);
  font-weight: 800;
  font-size: 13px;
}

.case-strip {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 18px;
}

.metric-card {
  background: var(--navy);
  color: var(--white);
  border: 0;
}

.metric-card strong {
  display: block;
  color: var(--gold);
  font-size: 34px;
  line-height: 1;
  margin-bottom: 10px;
}

.cta-band {
  background:
    linear-gradient(120deg, var(--navy), var(--navy-2));
  color: var(--white);
  padding: 46px 0;
}

.cta-inner {
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.cta-inner h2 {
  margin: 0 0 8px;
  font-size: clamp(26px, 3vw, 38px);
  font-family: "Songti SC", "STSong", serif;
}

.cta-inner p {
  margin: 0;
  color: rgba(255, 255, 255, .75);
}

.site-footer {
  background: #071727;
  color: rgba(255, 255, 255, .78);
  padding: 52px 0 24px;
}

.footer-grid {
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.2fr repeat(3, 1fr);
  gap: 32px;
}

.footer-grid h3,
.footer-grid h4 {
  margin: 0 0 14px;
  color: var(--white);
}

.footer-grid p,
.footer-grid a {
  display: block;
  margin: 0 0 9px;
  color: rgba(255, 255, 255, .68);
  font-size: 14px;
}

.footer-hotline {
  color: var(--white) !important;
  font-weight: 900;
}

.footer-hotline a {
  display: inline;
  color: var(--gold);
  font-size: inherit;
}

.footer-bottom {
  width: min(var(--max), calc(100% - 40px));
  margin: 28px auto 0;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, .1);
  color: rgba(255, 255, 255, .48);
  font-size: 13px;
  text-align: center;
  display: flex;
  justify-content: center;
  align-items: center;
}

.footer-bottom a {
  color: inherit;
}

.page-hero-shell {
  padding: 76px 0 64px;
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: 48px;
  align-items: end;
}

.page-hero h1 {
  font-size: clamp(38px, 5vw, 62px);
}

.page-hero p {
  color: rgba(255, 255, 255, .78);
  margin: 0;
  max-width: 680px;
  font-size: 17px;
}

body[data-page="cases"] .page-hero-shell {
  padding: 56px 0 44px;
}

body[data-page="cases"] .section {
  padding: 54px 0;
}

.hero-stat-box {
  border: 1px solid rgba(255, 255, 255, .2);
  border-radius: var(--radius);
  padding: 22px;
  background: rgba(255, 255, 255, .08);
}

.hero-stat-box strong {
  display: block;
  color: var(--gold);
  font-size: 34px;
}

.breadcrumbs {
  background: var(--white);
  border-bottom: 1px solid var(--line);
}

.breadcrumbs ol {
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
  padding: 13px 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  color: var(--muted);
  font-size: 13px;
}

.breadcrumbs li:not(:last-child)::after {
  content: "/";
  margin-left: 8px;
  color: #9aa8bb;
}

.breadcrumbs a {
  color: var(--blue);
  font-weight: 800;
}

.comparison {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.compare-phone {
  min-height: 310px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
  background: var(--white);
}

.compare-image-panel {
  position: relative;
  margin: 0;
  min-height: 0;
  padding: 18px;
  display: grid;
  place-items: center;
  overflow: hidden;
}

.compare-label {
  grid-area: 1 / 1;
  align-self: start;
  justify-self: start;
  z-index: 1;
  display: inline-flex;
  align-items: center;
  width: max-content;
  min-height: 30px;
  padding: 6px 10px;
  border-radius: 6px;
  font-size: 15px;
  font-weight: 900;
  line-height: 1;
  white-space: nowrap;
  writing-mode: horizontal-tb;
}

.compare-label-before {
  background: #fdecec;
  color: var(--red);
}

.compare-label-after {
  background: #e8f7f3;
  color: var(--green);
}

.compare-image-panel img {
  grid-area: 1 / 1;
  width: 100%;
  max-height: 430px;
  object-fit: contain;
  display: block;
}

.compare-screen {
  max-width: 230px;
  min-height: 260px;
  margin: 0 auto;
  border-radius: 24px;
  border: 7px solid #142033;
  padding: 18px;
  background: #f8fbff;
}

.warning-chip,
.safe-chip {
  display: inline-flex;
  padding: 6px 8px;
  border-radius: 5px;
  font-size: 12px;
  font-weight: 900;
}

.warning-chip {
  background: #fdecec;
  color: var(--red);
}

.safe-chip {
  background: #e8f7f3;
  color: var(--green);
}

.flow {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 12px;
}

.flow-step {
  position: relative;
  min-height: 180px;
  padding: 20px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.flow-step .number-tag {
  margin-bottom: 24px;
}

.topic-flow {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.topic-flow .flow-step {
  min-height: 0;
  padding: 24px 24px 26px;
  border-color: rgba(30, 91, 184, .16);
  box-shadow: 0 14px 32px rgba(17, 42, 77, .06);
}

.topic-flow .flow-step .number-tag {
  width: 46px;
  height: 46px;
  margin: 0 0 28px;
  border-radius: 10px;
  font-size: 20px;
}

.topic-flow .flow-step h3 {
  margin: 0 0 14px;
  font-size: 22px;
  line-height: 1.35;
}

.topic-flow .flow-step p {
  margin: 0;
  color: var(--muted);
  line-height: 1.75;
}

.solution-card {
  min-height: 260px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.solution-card ul,
.support-list {
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
}

.solution-card li,
.support-list li {
  padding: 8px 0;
  color: var(--muted);
  border-top: 1px solid #edf2f8;
}

.contact-card {
  margin-top: 18px;
  padding: 16px;
  border-radius: var(--radius);
  background: var(--gold-2);
  border: 1px solid #ecd28c;
}

.contact-card strong {
  display: block;
  color: #765a12;
  margin-bottom: 4px;
}

.contact-card a {
  color: var(--navy);
  font-size: 22px;
  font-weight: 900;
}

.faq-list {
  display: grid;
  gap: 14px;
}

.faq-item {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px 24px;
  box-shadow: 0 12px 28px rgba(17, 42, 77, .05);
}

.faq-item h3 {
  margin: 0 0 8px;
  font-size: 19px;
}

.faq-item p {
  margin: 0;
  color: var(--muted);
}

.topic-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}

.topic-card {
  min-height: 112px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease;
}

.topic-card:hover {
  transform: translateY(-2px);
  border-color: rgba(30, 91, 184, .32);
  box-shadow: 0 14px 32px rgba(15, 36, 68, .08);
}

.topic-card strong {
  color: var(--blue);
  font-size: 14px;
}

.topic-card span {
  margin-top: 16px;
  color: var(--ink);
  font-weight: 800;
  line-height: 1.45;
}

.seo-topic-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 420px;
  gap: 40px;
  align-items: start;
}

.service-table {
  width: 100%;
  border-collapse: collapse;
  overflow: hidden;
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: var(--shadow);
}

.service-table th,
.service-table td {
  padding: 16px;
  border-bottom: 1px solid var(--line);
  text-align: left;
}

.service-table th {
  background: var(--navy);
  color: var(--white);
}

.service-table tr:last-child td {
  border-bottom: 0;
}

.check {
  color: var(--green);
  font-weight: 900;
}

.case-page-card {
  position: relative;
  display: grid;
  grid-template-columns: minmax(280px, .58fr) minmax(560px, 1.42fr);
  gap: 8px;
  padding: 16px 18px;
  align-items: center;
}

.case-page-card + .case-page-card {
  margin-top: 16px;
}

.case-page-card:nth-child(even) .case-media {
  order: -1;
}

.case-page-card:nth-child(even) {
  grid-template-columns: minmax(560px, 1.28fr) minmax(360px, .72fr);
  gap: 28px;
}

.case-copy {
  position: relative;
  z-index: 2;
}

.case-copy h2 {
  margin-top: 6px;
  margin-bottom: 12px;
  font-size: clamp(28px, 3vw, 42px);
  line-height: 1.16;
}

.case-copy h3 {
  margin: 12px 0 7px;
  font-size: 22px;
}

.case-copy p {
  line-height: 1.62;
}

.case-label {
  color: var(--blue);
  font-weight: 900;
}

.case-media {
  position: relative;
  z-index: 1;
  margin: 0;
  overflow: hidden;
  border-radius: 0;
  background: transparent;
  border: 0;
  box-shadow: none;
}

.case-media img {
  width: 100%;
  max-height: 450px;
  object-fit: contain;
  display: block;
  padding: 0;
}

.case-media-scale-110 img {
  width: 110%;
  max-width: none;
  margin-left: -5%;
}

.case-media-scale-150 img {
  width: 150%;
  max-width: none;
  margin-left: -25%;
}

.case-media-postal img {
  width: 118%;
  max-width: none;
  margin-left: -9%;
}

.case-result {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.case-result span {
  background: var(--gold-2);
  color: #765a12;
  border-radius: 6px;
  padding: 7px 9px;
  font-weight: 900;
}

.about-grid {
  display: grid;
  grid-template-columns: .85fr 1.15fr;
  gap: 32px;
  align-items: start;
}

.capability-list {
  display: grid;
  gap: 14px;
}

.diagnosis-layout {
  display: grid;
  grid-template-columns: .9fr 1.1fr;
  gap: 30px;
  align-items: start;
}

.form-panel {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow);
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.field {
  display: grid;
  gap: 7px;
}

.field.full {
  grid-column: 1 / -1;
}

.field label {
  font-weight: 900;
  color: #253852;
  font-size: 14px;
}

.field input,
.field select,
.field textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 6px;
  min-height: 46px;
  padding: 10px 12px;
  color: var(--ink);
  background: #fbfdff;
}

.field textarea {
  min-height: 118px;
  resize: vertical;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: 2px solid rgba(30, 91, 184, .18);
  border-color: var(--blue);
}

.success-panel {
  display: none;
  margin-top: 18px;
  padding: 16px;
  border-radius: var(--radius);
  background: #e8f7f3;
  color: #145d4e;
  border: 1px solid #b9e3d7;
}

.success-panel.is-visible {
  display: block;
}

.success-panel.is-error {
  background: #fff1f1;
  border-color: #efb4b4;
  color: #8a1f1f;
}

.honeypot {
  display: none;
}

.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity .55s ease, transform .55s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1060px) {
  .hero-shell,
  .page-hero-shell,
  .coverage-layout,
  .about-grid,
  .diagnosis-layout {
    grid-template-columns: 1fr;
  }

  .hero-visual {
    min-height: 440px;
  }

  .phone-cluster {
    left: 50%;
    right: auto;
    transform: translateX(-50%);
  }

  .flow {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .topic-flow {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 860px) {
  .nav-shell {
    width: min(100% - 28px, var(--max));
    min-height: 66px;
  }

  .brand {
    min-width: 0;
  }

  .brand-text span {
    display: none;
  }

  .menu-toggle {
    display: inline-block;
  }

  .site-nav {
    position: fixed;
    inset: 66px 0 auto;
    display: none;
    background: var(--white);
    border-bottom: 1px solid var(--line);
    padding: 12px 20px 20px;
    box-shadow: 0 18px 30px rgba(15, 36, 68, .12);
  }

  body.menu-open .site-nav {
    display: grid;
  }

  .nav-actions .btn {
    display: none;
  }

  .nav-actions .hotline-link {
    display: none;
  }

  .home-hero {
    min-height: auto;
  }

  .hero-shell {
    padding: 52px 0 40px;
    gap: 22px;
  }

  .proof-strip,
  .grid-3,
  .grid-4,
  .grid-2,
  .topic-grid,
  .seo-topic-layout,
  .case-strip,
  .footer-grid,
  .comparison,
  .form-grid {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 62px 0;
  }

  .section-head,
  .cta-inner {
    display: block;
  }

  .section-summary {
    margin-top: 14px;
  }

  .cta-inner .btn {
    margin-top: 20px;
  }

  .case-page-card {
    grid-template-columns: 1fr;
  }

  .case-page-card:nth-child(even) {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .case-page-card:nth-child(even) .case-media {
    order: 0;
  }

  .case-media-postal img {
    width: 140%;
    margin-left: -20%;
  }
}

@media (max-width: 620px) {
  .hero-shell,
  .page-hero-shell,
  .section-inner,
  .cta-inner,
  .footer-grid,
  .footer-bottom,
  .breadcrumbs ol {
    width: min(100% - 28px, var(--max));
  }

  h1,
  .display-title {
    font-size: 40px;
  }

  .hero-copy,
  .page-hero p {
    font-size: 16px;
  }

  .hero-visual {
    min-height: 380px;
  }

  .phone-cluster {
    width: 275px;
    height: 380px;
  }

  .phone-device {
    width: 205px;
    min-height: 380px;
    border-width: 7px;
  }

  .phone-device.back {
    left: -20px;
  }

  .diagnosis-panel {
    width: 235px;
    left: 8px;
    bottom: -4px;
  }

  .flow {
    grid-template-columns: 1fr;
  }

  .service-table {
    display: block;
    overflow-x: auto;
    white-space: nowrap;
  }
}